medium caliber

According to the operating features of large and medium caliber gun automatic mechanism, a reliable automatic locking device was designed, which can lock dynamic system movement of automatic mechanism, and also automatic unlock under a small unlocked force, release dynamic structure.

针对大、中口径火炮自动机的工作特点，设计了一种自动卡锁装置，该装置可锁定自动机动力机构的运动，也能够在较小的解锁力作用下自动解锁，释放动力机构。

firing method of medium caliber naval gun on targets at sea is an important study of firing command automation.

中口径舰炮对海上目标的射击方法是射击指挥自动化研究中的一个重要课题。

According to cotton insulation pipe shell, apply to small and medium caliber pipe heat preservation heat insulation.

矿岩棉保温管壳，适用于中小口径管道的保温绝热。